AP Biologymediummcq1 pt

Based on the data, which of the following best describes the relationship between cyclin-dependent kinases and the cell cycle?

A.C) Cyclin-dependent kinases only inhibit cell cycle progression

B.B) Cyclin-dependent kinases drive the cell cycle forward

C.A) Cyclin-dependent kinases only active during G1 phase

D.D) Cyclin-dependent kinases are not essential for cell cycle progression

Explanation

Core Concept

Cyclin-dependent kinases play a crucial role in driving the cell cycle forward by phosphorylating and activating downstream targets. They are essential for cell cycle progression and are active during different stages of the cell cycle. Options A and C are incorrect because cyclin-dependent kinases are active during multiple phases of the cell cycle, not just G1. Option D is incorrect because cyclin-dependent kinases are essential for cell cycle progression.

Correct Answer

B) Cyclin-dependent kinases drive the cell cycle forward

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